Below are the answers key for Multiple Choice Questions in Chapter 24: Regulated Power Supplies from the book Electronic Principles 7th Edition by Albert Malvino. Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.
1. a. Negative feedback
2. b. Load current
3. b. Destroy diodes and transistors
4. b. Small
5. c. Pass transistor
6. a. A small value
7. c. Oscillations
8. c. 2%
9. b. 1%
10. a. Very small
11. c. Much smaller
12. b. 1 mV
13. b. Internal temperature is too high
14. b. A bypass capacitor on the input pin
15. a. Positive
16. c. 12 V
17. b. Parallel with the IC regulator
18. d. A current-sensing resistor
19. c. Opposite in phase
20. a. Linear regulator
21. c. Increase the duty cycle
22. b. An increase in load voltage
23. a. Load regulation
24. a. Shunt regulator
25. b. Constant
26. a. Built-in short-circuit protection
27. c. Little power is wasted
28. d. All of the above
29. b. Noisy
30. d. Series regulator
31. c. The pass transistor replaces the series resistor
32. a. Headroom voltage is low
33. a. Foldback limiting
34. c. 2 V
35. a. Choke-input filter
36. c. Switching regulator
37. b. Capacitor-input filter
38. d. All of the above
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